Dairy wastewater treatment by anaerobic fixed bed reactors from laboratory to pilot-scale plant: A case study in Costa Rica operating at ambient temperature
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| Autores: | , , |
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| Formato: | artículo |
| Fecha de Publicación: | 2013 |
| Descripción: | The effect of hydraulic retention time in a range from 1.0-5.5 days was evaluated in a laboratory scale anaerobic fixed bed reactor packed with a hybrid material composed of tire rubber and zeolite. Under these conditions, COD removal efficiencies varied from 28.3% to 82.1%, respectively. Over the more than 6 months of operation, no clogging was observed. The results obtained demonstrated that this type of reactor was capable of operating with dairy waste at a hydraulic retention time 5 times lower than that used in a conventional digester. Based on the laboratory-scale experimental results obtained, a pilot-scale plant was designed. The pilot plant was installed in “Cot de Oreamuno” near the city of Cartago, Costa Rica.Biogas produced in the pilot-scale anaerobic plant was used for the generation of electricity on the farm. In this case, a COD removal efficiency of 63.6 % was achieved in the full-scale anaerobic plant at a hydraulic retention time of 3 days, this value being comparable with that obtained at laboratory-scale. |
| País: | Repositorio UNA |
| Institución: | Universidad Nacional de Costa Rica |
| Repositorio: | Repositorio UNA |
| Lenguaje: | Inglés |
| OAI Identifier: | oai:null:11056/23081 |
| Acceso en línea: | http://hdl.handle.net/11056/23081 |
| Palabra clave: | AGUAS RESIDUALES TEMPERATURA FIXED BED REACTORS ANAEROBIC DAIRY WASTEWATER CARTAGO (COSTA RICA) |